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RE: AC Heat nulling hum without a hum POT

The impedance of the CT filament secondary of the transformer would vary with frequency, in other words - 'cathode' impedance WRT 0V varies with frequency.

Question is does this matter?.

FWIW, it all sounds the same to me with PP 2A3.


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  • RE: AC Heat nulling hum without a hum POT - shane. 03/17/1400:10:23 03/17/14 (0)

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